Nut-machine



UNITED STATES PATENT OFFIC ROBERT GRIFFITHS, OF ALLEGHENY, PENNSYLVANIA.

NUT-MACHINE.

Specification forming part of Letters Patent No. 13,720, dated October 30, 1855; Ressued November 25, 1856, No. 411.

To @ZZ whom it may concern:

Be it known that I, ROBERT Gnirrrrrrs, of the city and county of Allegheny, in the State of Pennsylvania, have invented certain new and useful Improvements in Nut- Machines; and I do hereby declare that the following is a full and exact description thereof, reference being had to the accompanying drawings and to the letters of ref erence marked thereon.

Figure l is a side view. Fig. 2 is a plan or top view. Fig. 3 is a sectional view of the machine with the frame removed. Fig. t is a detached view of a stationary box and puncher-also a sliding box. Fig. 5 is an edge view of the tables for forming a hexagonal nut. Fig. 6 is a proposed plan of double boxes working above and in advance of each other. Fig. 7 is a plan for fastening the boxes together, in whole or in part.

The nature of my invention consists in the mode herein described for forming from a heated bar at thesame operation already punched, and either four or six sided nuts.

To enable others skilled in the art to make and use my invention I will proceed to describe its construction and operation.

I construct my machine entirely of wrought or cast iron, and steel, or of any thing that will answer my purposes.

In the construction of my invention Fig. l letter A, is the frame; B, the cam for closing the upper table; C, the yoke in which said cam plays; D, the collar for the lower end of the yoke to pass through; A2 A2 A2, the shafts on which are placed the cams and cogwheels; E, the spiral spring for replacing the table; F, the sliding boxes; G, the punchers; H, the stationary sides of the machine in which the sliding boxes and punchers work and between which the stationary boxes are placed; I, I, I, cogwheels; (L a, the ends of the cutting boxes in a position to receive the heated bar; Z), Z), the edges of the upper table; c c, the edges of the lower table; (Z, (Z, the screws for adjusting the tables; c, the scraper for cleaning the table of the nuts when made; f, the spring attached to the scraper for the purpose of replacing it after cleaning the table; g, g, the square collars around the cams on shafts A2. The red lines on the two shafts show the position of the cams.

In Fig. 2 letter A is the frame; C the yoke surrounding cam B for lowering the upper table; F, the sliding boxes; G, the punchers; g, the square collars, and g2 the round collars around the cams on shafts A2; Z), the upper table; Z22, the shaft passing through the frame for lifting and lowering the upper table; C2, the boxes for confining shafts A2; ZL, it, ZL, h, the screws passing through them; I, I, I, the cogwheels.

In Fig. 3 letter K is one of the cams on the center shaft A2 for raising the lower table; c, o, the table; (Z, (Z, the screws for adjusting the tables; c, the scraper; L, the lever on shaft A2 for operating the scraper; f, the spring for replacing the scraper;

` H, the sides of the stationary frame between which the stationary boxes are placed, and

the sliding boxes and punchers work; o, ZJ,

the upper table; (Z, (Z, the screws for adjusting it; J, J, sliders to which the tables are attached, having screws 7c, 7c, in them, and working in slots in the sides of the frame A; A2, the shaft (a section of) with the washer Z, m, the rear portion attached to the square yokes,

In Fig. 4t, N, is one of the boxes the dotted lines showing an opening for the escape for the punchings; O, a puncher, the dotted lines showing its passage through the stationary box.

In Fig. 5, n, n, is the edge view of the grooved tables for forming hexagonal nuts.

In the operation of my invention the heated bar is inserted through the slot (l, in the upright portion of yoke C, is received between the cutting and sliding boxes and the stationary boxes (Z, (Z, the gear wheels are put in motion, and as they revolve the cams shown in red lines on shafts A2 in Fig. 1 revolve and operate on the yokes g, g, g2, g2, which cause the sliding boxes and the punchers to move forward passing the stationary boxes thus cutting the bar into nu-ts, and punching them in the same time and the punchings are discharged as shown at N, Fig. 4, the punchers sliding up and passing through the nut as seen atletter O, in dotted lines and enters into the box far enough for it to receive t-he punchings.

As the machine operates as above at the same time the cams B and K on the bottom shaft A2 operate the cam B on the yokes C, C, for raising and lowering the upper table, and the cams K on the frame attached to the sliders J, J, for moving the lower table thus causing the tables to come together, rmly pressing the heated bar at the point of time when the sliding boxes and punches pass the stationary boxes, and thereby severing the bar into nuts, and punching them at the same time. As soon as the nuts are thus made the tables open, and the nuts fall on the lower table, and as it recedes the scraper e, with its short vertical arm on its upper side is caught by the lever L, which carries it back, and as it passes over the top of the lower table scrapes the nuts off it, and when the lever L passes the vertical arm t, the spiral spring f throws the scraper back ready to operate again.

I propose using when desired the grooved tables as seen in Fig. 5 for the purpose of making hexagonal nuts-these tables can be inserted instead of the smooth ones as seen in the machine.

Having thus fully described the const-ruction and operation of my machine what I claim as new and desire to secure by Letters Patent is- The tables a, n, and the boxes and punches whether connected together or not, arranged and operating as herein described.

ROBERT GRIFFITHS.

Attest- A. EICHBAUM, ALEX. HAYs.

[FIRST PRINTED 1912.] 

